Causes of Viral Infections You Need to Know, Viral infections happen when the virus manages to get into the body and multiply itself, then causes diseases. But when a virus gets into the body, it does not immediately multiply itself. Instead, it will kill, damage, or change the structure of healthy body cells first before invading these cells to become a host. It is because viruses cannot survive without help from cells of living organisms.
According to the US National Library of Medicine, complaints will pop up when viruses start to destroy body cells until they eventually multiply themselves. Based on infected body organs or body parts, here are the types of viruses that can cause infections.
Viral Infections of the Digestive Tract
Viral infections of the digestive tract affect organs in the digestive system, such as intestines, liver, and stomach. Common symptoms caused by this viral infection are nausea, vomiting, stomach pain, and diarrhea. Some types of viruses that can attack the digestive system are adenovirus, rotavirus, norovirus, hepatitis, and astrovirus. These viruses usually enter the gastrointestinal tract through the mouth.
Therefore, these viruses are commonly transmitted through water, foodborne, or contaminated eating utensils. Touching the mouth after contact with contaminated food or objects can also transmit these viruses.
Viral Infections of the Respiratory Tract
As the name implies, this viral infection attacks the respiratory tract, both the upper respiratory system and lower respiratory system. Viral infections of the respiratory tract can affect some organs, such as lungs, throats, and noses. The types of viruses that infect the respiratory system are varied, including influenza, rhinovirus, coronavirus, parainfluenza, adenovirus, and RSV or respiratory syncytial virus.
Transmission of viruses that cause respiratory diseases generally takes place through droplets or inhaling contaminated air that is released when infected people sneeze or cough. If the viral infection is not severe, you can treat it at home by using natural ingredients, such as cross salt or 0,9 % NaCL or Sea Salt or Non-iodized salt
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Viruses can also infect the skin. Rash, stinging, or itching are the main symptoms of viral infections of the skin. The affected body parts can vary, including the skin in the genital area. The types of viruses that can cause skin infections are varicella zoster, rubella, variola, human papillomavirus, herpes simplex, monkeypox, and molluscum contagiosum. The transmission happens through contact with rashes or infected skin wounds. Inhaling air contaminated with viruses can also transmit some viruses that cause skin diseases.
Viral Infections of the Nervous System
Viral infections can also happen in the nervous system that consists of the brain and spinal cords. Viral infections of the nervous system can cause various diseases, such as meningitis, encephalitis, rabies, and polio. Several types of viruses that can infect the nervous system are type 2 herpes simplex, poliovirus, arbovirus, enterovirus, and varicella zoster. Viruses that infect the nervous system are infectious in a variety of ways and triggering a number of diseases.
For example, enteroviruses are spread through droplets when someone infected is sneezing or coughing. On the other hand, arbovirus is spread through the bite of insects, such as fleas or mosquitoes.
Viral Infections of the Liver
Viral infections of the liver commonly cause hepatitis. Depending on the type of the virus, it can be spread through contaminated food, the use of unsterile needles, and direct contact with the blood, urine, sperm, or vaginal fluids of an infected person. This kind of viral infection causes hepatitis A, hepatitis B, hepatitis C, hepatitis D, and hepatitis E.
Besides some types of viral infections mentioned above, there is also a viral infection called VHF Viral Hemorrhagic Fever. This kind of viral infection causes blood clotting disorders as well as damages the walls of blood vessels, which can trigger bleeding.